Patents by Inventor Wilfried Bartz
Wilfried Bartz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8048504Abstract: A layered composite which includes the following layers (I) and (II), wherein layer (I) includes (a) from 0 to 80 part by weight of at least one particular polyamide; (b) from 0 to 100 parts by weight of at least one polyamine-polyamide copolymer; and (c) from 0 to 80 parts by weight of at least one particular polyamide which is different from (a), wherein various monomer units are present in at least 20 parts by weight of the entirety of (a) and (b) and various other monomer units are present in at least 20 parts by weight of the entirety of (b) and (c); and layer (II) includes at least one ethylene-vinyl alcohol copolymer.Type: GrantFiled: February 22, 2006Date of Patent: November 1, 2011Assignee: Evonik Degussa GmbHInventors: Guido Schmitz, Harald Haeger, Hans Ries, Wilfried Bartz
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Patent number: 7582342Abstract: A composition suitable for molding is provided having the following components: I. from 97 to 80 parts by weight of a polyetheramide, having units based on one or more linear aliphatic diamines having from 6 to 14 carbon atoms, one or more linear aliphatic or aromatic dicarboxylic acids having from 6 to 14 carbon atoms, and one or more polyetherdiamines having at least 3 carbon atoms per ether oxygen and having primary amino groups at the chain ends, II. from 3 to 20 parts by weight of a rubber containing one or more functional groups; and where the total of the parts by weight of I and II is 100; and moldings produced therefrom.Type: GrantFiled: July 16, 2004Date of Patent: September 1, 2009Assignee: Degussa AGInventors: Franz-Erich Baumann, Wilfried Bartz, Martin Himmelmann, Olivier Farges
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Patent number: 7175896Abstract: A layered composite contains the following layers: (I) a layer I composition containing (a) from 0 to 80 parts by weight of at least one polyamide; (b) from 0 to 100 parts by weight of at least one polyamine-polyamide copolymer; and (c) from 0 to 80 parts by weight of at least one polyamide; and (II) a layer II composition containing at least one ethylene-vinyl alcohol copolymer.Type: GrantFiled: October 9, 2003Date of Patent: February 13, 2007Assignee: Degussa AGInventors: Guido Schmitz, Harald Haeger, Hans Ries, Wilfried Bartz
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Publication number: 20060141188Abstract: The present invention provides a layered composite, which includes the following layers: (I) a layer I composition including: (a) from 0 to 80 part by weight of at least one polyamide selected from the group including PA6, PA66, PA6/66 and mixtures thereof; (b) from 0 to 100 parts by weight of at least one polyamine-polyamide copolymer that includes the following monomer units: (?) from 0.Type: ApplicationFiled: February 22, 2006Publication date: June 29, 2006Applicant: DEGUSA AGInventors: Guido Schmitz, Harald Hager, Hans Ries, Wilfried Bartz
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Patent number: 6884485Abstract: A molding composition containing the following components: I. from 99.9 to 95 parts by weight of a polyetheramide obtained from 1) a linear aliphatic diamine having from 6 to 12 carbon atoms, 2) a linear aliphatic or aromatic dicarboxylic acid having from 6 to 12 carbon atoms, and 3) a polyetherdiamine having at least 3 carbon atoms per ethereal oxygen atom and having a primary amino group at an end of the chain, and II. from 0.1 to 5 parts by weight of a copolymer which contains from 0.8 to 20% by weight of an anhydride or an epoxide in copolymerized form, wherein the total amount of I. and II. is 100 parts by weight, is suitable for the extrusion of flexible pipes, and also for the production of flexible blow-molded articles.Type: GrantFiled: January 21, 2003Date of Patent: April 26, 2005Assignee: Degussa AGInventors: Franz-Erich Baumann, Martin Himmelmann, Wilfried Bartz, Olivier Farges
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Publication number: 20050038201Abstract: A process for condensing polyamides to increase their molecular weight, using a compound having at least two carbonate units comprises using a polyamide which, as a result of its preparation, comprises from 5 to 500 ppm of phosphorus in the form of an acidic compound, and adding, to the polyamide, from 0.001 to 10% by weight of a salt of a weak acid, thus eliminating the inhibiting action of the phosphorus compound.Type: ApplicationFiled: August 16, 2004Publication date: February 17, 2005Applicant: DEGUSSA AGInventors: Roland Wursche, Andreas Dowe, Franz-Erich Baumann, Wilfried Bartz, Martin Himmelmann, Rainer Goring
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Publication number: 20050014842Abstract: A composition suitable for molding is provided having the following components: I. from 97 to 80 parts by weight of a polyetheramide, having units based on one or more linear aliphatic diamines having from 6 to 14 carbon atoms, one or more linear aliphatic or aromatic dicarboxylic acids having from 6 to 14 carbon atoms, and one or more polyetherdiamines having at least 3 carbon atoms per ether oxygen and having primary amino groups at the chain ends, II. from 3 to 20 parts by weight of a rubber containing one or more functional groups; and where the total of the parts by weight of I and II is 100; and moldings produced therefrom.Type: ApplicationFiled: July 16, 2004Publication date: January 20, 2005Applicant: DEGUSSA AGInventors: Franz-Erich Baumann, Wilfried Bartz, Martin Himmelmann, Olivier Farges
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Publication number: 20040265527Abstract: The present invention provides a layered composite, which includes the following layers:Type: ApplicationFiled: October 9, 2003Publication date: December 30, 2004Applicant: DEGUSA AGInventors: Guido Schmitz, Harald Hager, Hans Ries, Wilfried Bartz
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Patent number: 6677015Abstract: A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at least 5 000 Pa•s at 250° C. and at a shear rate of 0.1 l/s, and having a viscosity ratio of at least 7 at 250° C., when the melt viscosities at shear rates of 0.1 l/s and 100 l/s are compared with one another, has high melt stiffness and is easy to cut, and performs well in blow molding.Type: GrantFiled: December 19, 2001Date of Patent: January 13, 2004Assignee: Degussa AGInventors: Martin Himmelmann, Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger, Ralf Richter
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Publication number: 20030162899Abstract: A molding composition containing the following components:Type: ApplicationFiled: January 21, 2003Publication date: August 28, 2003Applicant: Degussa AGInventors: Franz-Erich Baumann, Martin Himmelmann, Wilfried Bartz, Olivier Farges
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Patent number: 6579581Abstract: A molding which comprises the following components: (I) from 60 to 96.5 parts by weight of polyamide; (II) from 3 to 39.5 parts by weight of an impact-modifying component which contains anhydride groups, (III) from 0.5 to 20 parts by weight of a copolymer which contains units of the monomers: (a) &agr;-olefin, (b) acrylic compound, and also (c) olefinically unsaturated epoxide, carboxylic anhydride, carboximide, oxazoline or oxazinone, where the total of the parts by weight of components I, II, and III is 100, and where moreover the polyamide has an excess of amino end groups, has improved low-temperature impact strength, even if the molding composition also comprises a plasticizer.Type: GrantFiled: June 22, 2001Date of Patent: June 17, 2003Assignee: Degussa AGInventors: Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger
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Publication number: 20020142118Abstract: The present invention provides a layered composite, which includes the following layers:Type: ApplicationFiled: December 21, 2001Publication date: October 3, 2002Applicant: Degussa AGInventors: Guido Schmitz, Harald Haeger, Hans Ries, Wilfried Bartz
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Publication number: 20020119267Abstract: A molding composition of at least 50% by weight of a polyamine-polyamide copolymer obtained from 0.05 to 2.5% by weight of a polyamine having at least 4 nitrogen atoms and having a viscosity of at least 5 000 Pa•s at 250° C. and at a shear rate of 0.1 l/s, and having a viscosity ratio of at least 7 at 250° C., when the melt viscosities at shear rates of 0.1 l/s and 100 l/s are compared with one another, has high melt stiffness and is easy to cut, and performs well in blow molding.Type: ApplicationFiled: December 19, 2001Publication date: August 29, 2002Applicant: DEGUSSA AGInventors: Martin Himmelmann, Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger, Ralf Richter
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Publication number: 20020019477Abstract: A molding which comprises the following components:Type: ApplicationFiled: June 22, 2001Publication date: February 14, 2002Applicant: Degussa-Huels AktiengesellschaftInventors: Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger
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Patent number: 5053440Abstract: Molding compounds, semi-finished products and finished articles comprising polymeric material which can be inscribed by means of laser light. The products contain an additive which is virtually colorless in the visible spectral range and produces a marking with high color contrast in the visible spectral range under the effect of laser light outside the visible range.Type: GrantFiled: April 5, 1990Date of Patent: October 1, 1991Assignee: Huels AktiengesellschaftInventors: Ralf Schueler, Christian Herkt-Maetzky, Wilfried Bartz
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Patent number: 4985494Abstract: A thermoplastic molding composition comprising 70 to 98 parts of an aromatic polycarbonate having a viscosity number of from 40 to 100 cm.sup.3 /g and 2 to 30 parts of a polyoctenylene or a modified polyoctenylene.Type: GrantFiled: February 21, 1990Date of Patent: January 15, 1991Assignee: Huels AktiengesellschaftInventors: Ralf Schueler, Joachim Muegge, Michael Droescher, Wilfried Bartz, Roland Feinauer
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Patent number: 4923926Abstract: A thermoplastic molding composition comprising 70 to 98 parts of an aromatic polycarbonate having a viscosity number of from 40 to 100 cm.sup.3 /g and 2 to 30 parts of a polyoctenylene or a modified polyoctenylene.Type: GrantFiled: April 5, 1989Date of Patent: May 8, 1990Assignee: Huels AktiengesellschaftInventors: Ralf Schueler, Joachim Muegge, Michael Droescher, Wilfried Bartz, Roland Feinauer
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Patent number: 4920174Abstract: Impact-resistant polyester molding compounds, comprising an intimate mixture ofA. 60 to 98% by weight of a polyester andB. 2 to 40% by weight of a polyalkenamer, optionally containing functional groups,which is treated with from about 0.05 to 5% by weight, relative to the sum of components A and B, of an organic radical former at temperature sufficient to cause said radical former to decompose into free radicals are provided.Type: GrantFiled: June 17, 1987Date of Patent: April 24, 1990Assignee: Huels AktiengesellschaftInventor: Wilfried Bartz
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Patent number: 4840993Abstract: Impact-resistant polyamide molding compound consisting of a mixture ofA. 60 to 98% by weight of a polyamide andB. 2 to 40% by weight of a polyalkenamer, wherein the mixture is treated at elevated temperatures with 0.05 to 5% by weight of the sum of components A and B of an organic radical former are provided as well as processes for making them.Type: GrantFiled: April 21, 1987Date of Patent: June 20, 1989Assignee: Huels AktiengesellschaftInventor: Wilfried Bartz
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Patent number: 4755552Abstract: Impact-resistant polyamide molding compounds are provided consisting of a mixture of (A) from about 80 to about 99% by weight of a polyamide having an ETA.sub.rel value of from about 1.2 to about 2.4 and (B) from about 2 to about 20% by weight of a polyalkenamer having a viscosity number of from about 50 to about 400 ml/g.Type: GrantFiled: April 21, 1987Date of Patent: July 5, 1988Assignee: Huels AktiengesellschaftInventors: Hans Jadamus, Michael Droescher, Wilfried Bartz